| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method of a soft urethane foam for seat pads of vehicles which is substantially reduced in air entrapment and is high in moldability, a soft urethane foam for seat pads of vehicles which is produced by the production method and is high in moldability and a seat pad for vehicles.SOLUTION: A production method of a soft urethane foam for seat pads of vehicles includes a step of reacting a polyol constituent with a polyisocyanate constituent in the presence of a catalyst, a foaming agent and a foam stabilizer. The catalyst contains at least two tertiary amines including triethylene diamine; the total blend amount of the tertiary amines is 0.3-0.5 pt. mass to 100 pts. mass of the polyol constituent; and the blend amount of triethylene diamine is 0.2 pt. mass or less to 100 pts. mass of the polyol constituent. |
